Ahead of Print
Emerging Infectious Diseases
Volume 19, Number 8—August 2013
Research
Abstract
Noroviruses are the leading cause of gastroenteritis in the United
States, but timely measures of disease are lacking. BioSense, a
national-level electronic surveillance system, assigns data on chief
complaints (patient symptoms) collected during emergency department (ED)
visits to 78 subsyndromes in near real-time. In a series of linear
regression models, BioSense visits mapped by chief complaints of
diarrhea and nausea/vomiting subsyndromes as a monthly proportion of all
visits correlated strongly with reported norovirus outbreaks from 6
states during 2007–2010. Higher correlations were seen for diarrhea (R = 0.828–0.926) than for nausea/vomiting (R = 0.729–0.866)
across multiple age groups. Diarrhea ED visit proportions exhibited
winter seasonality attributable to norovirus; rotavirus contributed
substantially for children <5 years of age. Diarrhea ED visit data
estimated the onset, peak, and end of norovirus season within 4 weeks of
observed dates and could be reliable, timely indicators of norovirus
activity.
Brian
RhaComments to Author , Sherry Burrer, Soyoun Park, Tarak Trivedi,
Umesh D. Parashar, and Benjamin A. Lopman Author affiliations: Centers
for Disease Control and Prevention, Atlanta, Georgia, USA (B. Rha, S.
Burrer, S. Park, T. Trivedi, U.D. Parashar, B.A. Lopman); McKing
Consulting Corporation, Atlanta (S. Park)
Continued: http://wwwnc.cdc.gov/eid/article/19/8/13-0483_article.htm
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